Here's to you! A big bold lime-scented mint for your next margarita. This hybrid is a beauty, with lots of physical definition as breeder Jim Westerfield puts it. And so it does, with perfectly shaped, groovy leaves, and a hint of dark bronze at the tips at times. This mint means fun. Does not spread by underground rhizomes like most mints, but it still gets around by aboveground runners. RICHTERS EXCLUSIVE CANADIAN INTRODUCTION. Richters holds exclusive propagation rights in Canada.